Ancient "Jumping DNA" May Have Evolved into Key Component of Human Immune System
.... The Schatz teamhas found that RAG1 and RAG2 work together as a transposase, an enzyme thatsnips pieces of DNA out of one location in a chromosome and transposes thesepieces elsewhere. This ability to slice and recombine genes accounts for the"split nature" of antibody and T-cell receptor gene DNA, allowing ......cancer because ofvariations in two genes that work together to escalate their already high risk,scientists at the National Institute of Environmental Health Sciences report. The distinctive study may be the first to define a three-waygene-gene-environmental relationship to disease risk. Both ...Promiscuous Plants May Spread Genes To Weeds
...idopsis, a selfing mustard plant, and planted them together on a plot in central Illinois. One type contained a point mutation in the Csr1-1 gene making it resistant to chlorsulfuron, anherbicide. The second variety of Arabidopsis was engineered with a mutatedCsr1-1 gene, producing a transgenic chlorsulfur...Hopkins Researchers Discover Key Target In Molecular Pathway That Initiates Colon Cancer
... the cancer puzzle andnow we can begin to put them together to see the whole picture of how they worktogether to cause cancer," Kinzler says.Colon cancer, among the most common cancers in both men and women, this yearwill strike more than 131,000 Americans. Some 56,500 individuals will die ofit. In addition ...Doctors Find Lead On Common Genes Which Can Lead To Bowel Cancer
...ental elements such as diet are probably involved, together with othergenes. They also want to find out the exact risk these genes confer and thebest way of identifying carriers. Said Dr Frayling: "This is a definite lead on common genes that lead to bowelcancer. There is other evidence that there are othe...Researchers Offer DOD New Hazardous Waste Clean-Up Methods
...ted that government, industry andacademia can work together as an efficient and effective team in moving researchand development ideas into the field and toward commercialization....Evidence For Earliest Maritime-Based Societies In The Americas Reported In Science Magazine
...n thecoast. Quebrada Jaguay and Quebrada Tacahuay, together with another recently discoveredcoastal site in California, are the earliest coastal sites in the Americas to bereliably dated. Because of the rise in sea level and the lack of obviousPaleoindian tools it's taken scientists longer to find coastal sit...Cocoa And Chocolate Experts Convene To Discuss Sustainable Cocoa Production
...CRI Vice President Carol Knight,Ph.D. "By working together on a worldwide basis, we will be able to addresssustainabilityissues from a consensus position morequickly than ifeach organization worked independently." Conference attendees include scientists and environmental experts fromchocolatecompanies ...Hutch Researcher Wins 'Nobel Prize Of Applied Research'
...oviral gene expression. "So I guess putting it all together is whatmakes it exciting," Miller says. Also attractive to researchers is the kit's new PT67 packaging cell line that is used in conjunction with a retroviral vector to create particles that caninvade target cells and deliver the gene of interest. "C...Birds Of A Feather: The Physics Of Flocks
...sent a detailed theory of how birds manage to move together as asingle unit, even if the individual birds make...heir magnets with those of their neighbors, adding together tocreate in effect a large bar magnet and giving the overall material a strongability to attract or ...Upcoming 'Century Of Biology' Given Head Start By NSF Plant Genome Research Program Grants
...s'responses to infection. Genes often work together when plants develop tolerance forenvironmental stresses. Grantee Nina Fedoroff of Pennsylvania State Universitywill attempt to identify groups of genes whose patterns change when a plant isenvironmentally stressed. Fedoroff will use ozone and patho......al problems." Altogether, the new institute brings together some 50 senior researchers withbackgrounds in chemistry, chemical and environmental engineering and materialsscience. They will be organized into three process-oriented research groups --chemical processing, emissions treatment, and natural environme...Silent Thunder: In The Presence Of Elephants
...ome out of the range of human hearing -- that bind together individualelephants in a complex network of relatives and acquaintances. Payne's recentlypublished book, Silent Thunder: In the Presence of Elephants, will be availablefor purchase and signing. Please call 212-769-5200 for reservations. Programcode:...Henney To Address Attendees At FDA Science Forum
... and will bring FDA research and review scientists together with representatives of industry, academia, government agencies, consumer groups, and the public to discuss the impact of the enormous advances in biotechnology on product development and regulation. The program will encompass bioengineered products,...New "Gene Map" Doubles Number Of Genes
...dicine (NLM) at the National Institutes of Health, together with the Sanger Centre, a British genome center fu...alented biologists and computer specialists worked together to assemble the Gene Map," noted Dr. David J. Lipman, NCBI director, "and putting it on the web exte...Ribozymes Come Ready For Action
...ce "nooks and crannies" to help themolecules stick together within the crystal. While Doudna's group could eas...provides a new tool for creating RNA crystals, and together withCech's results, shows that crystallizing RNA is feasible despite previous doubtsthat RNA might b...NSF teams with DOE to fund Environmental Molecular Science Institutes
The National Science Foundation (NSF) together with the Department ofEnergy (DOE) has awarded a total of $21.4 million over five years to establishthree Environmental Molecular Science Institutes (EMSIs). Grants made to Columbia, Northwestern and Princeton Universities in thisone-time co...USGS Finds Sea Otters At Risk From Killer Whales In A Changing Ocean
... whales. Killer whales and sea otters have existed together for thousands of years, butkiller whales are offshore dwellers, whereas sea otters live along the coast.Estes emphasizes that the sea otter is a keystone species of coastal ecosystems,an animal on which the balance of entire ecosystems rests. As the...UCSF Finding Offers Insight Into Way Genes Regulate Aging And Life Span
... all the cells in the animal, so that they all age together atthe same rate," said Kenyon. The researchers determined that one of the signaling cell types that daf-2 actswithin is nerve cells. It is also possible, said Kenyon, that the gene actssystemically within both neural and nonneural cells, perhaps eve...Long Lava Flows May Have Taken Years, Causing Global Cooling And Extinctions
...nsville,Queensland, Australia. The meeting brought together volcanologists working onactive flows in various parts of the world, other volcanologists analyzing floodbasalt lava flows, planetary geologists, marine geologists, theoreticians, andeconomic geologists studying ancient ore-bearing lava flows. ...